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authorBoris Kolpackov <boris@codesynthesis.com>2022-09-28 07:03:59 +0200
committerBoris Kolpackov <boris@codesynthesis.com>2022-09-28 07:03:59 +0200
commitdf240ff6adc0c5f6ba994741e08ed9d879ec7878 (patch)
tree80ec54382d1aeec52ffa0fa11ead414cd77d3048 /bootstrap
parentbb70fe6adee0ccda2d5bb8243baf5793714ecbe1 (diff)
Add support for --arch-variant, --kernel-source
Diffstat (limited to 'bootstrap')
-rwxr-xr-xbootstrap153
1 files changed, 101 insertions, 52 deletions
diff --git a/bootstrap b/bootstrap
index 773b379..caaa3ca 100755
--- a/bootstrap
+++ b/bootstrap
@@ -28,8 +28,22 @@
# 5 - create footfs
# 6 - create kernel image and initrd
#
+# --arch-variant
+# Architecture variant, for example, m1 for aarch64-m1.
+#
+# --kernel-source
+# Pre-configured Linux kernel source .tar.* archive. If unspecified, Debian
+# source/configuration will be used.
+#
usage="usage: $0"
+owd="$(pwd)"
+trap "{ cd '$owd'; exit 1; }" ERR
+set -o errtrace # Trap in functions.
+
+function info () { echo "$*" 1>&2; }
+function error () { info "$*"; exit 1; }
+
id="$(id -un)"
btrfs=/btrfs
root="$btrfs/$id/buildos"
@@ -98,15 +112,12 @@ esac
extra_pkgs=""
-owd="$(pwd)"
-trap "{ cd '$owd'; exit 1; }" ERR
-set -o errtrace # Trap in functions.
-
-function info () { echo "$*" 1>&2; }
-function error () { info "$*"; exit 1; }
-
-stage="1"
-stage_max="6"
+# Options.
+#
+stage=1
+stage_max=6
+arch_variant=
+kernel_source=
while [ "$#" -gt 0 ]; do
case "$1" in
@@ -115,6 +126,16 @@ while [ "$#" -gt 0 ]; do
stage="$1"
shift
;;
+ --arch-variant)
+ shift
+ arch_variant="$1"
+ shift
+ ;;
+ --kernel-source)
+ shift
+ kernel_source="$1"
+ shift
+ ;;
-*)
error "unknown option: $1"
;;
@@ -128,6 +149,11 @@ if [ "$stage" -lt "1" -o "$stage" -gt "$stage_max" ]; then
error "invalid stage number $stage"
fi
+arch_with_variant="$arch"
+if [ -n "$arch_variant" ]; then
+ arch_with_variant="$arch_with_variant-$arch_variant"
+fi
+
# Extract version.
#
version="$(sed -n -re 's/^version: ([0-9]+\.[0-9]+\.[0-9]+).*$/\1/p' ./manifest)"
@@ -410,6 +436,12 @@ EOF
subvol_delete "$root-3-kernel"
subvol_snapshot "$root" "$root-3-kernel"
+ # Copy custom kernel source.
+ #
+ if [ -n "$kernel_source" ]; then
+ sudo install -m 644 "$kernel_source" "$root-3-kernel/usr/src/"
+ fi
+
# Copy patches.
#
#sudo cp ./patches/tftp-hpa-partial-upload.patch "$root-3-kernel/bootstrap/"
@@ -450,62 +482,73 @@ fi
# kernel with adjusted configuration. Taken from the Debian Kernel Handbook.
#
apt-get update
-apt-get install -y linux-source
apt-get install -y bison flex
apt-get install -y libelf-dev
apt-get install -y libssl-dev
apt-get install -y rsync
apt-get install -y dwarves
+
cd /usr/src
-tar xf linux-source-*
-mv linux-source-*/ linux
-xzcat linux-config-*/config.${debian_arch}_none_${debian_arch}.xz >linux/.config
+
+if [ -z "$kernel_source" ]; then
+ apt-get install -y linux-source
+ tar xf linux-source-*
+ mv linux-source-*/ linux
+ xzcat linux-config-*/config.${debian_arch}_none_${debian_arch}.xz >linux/.config
+else
+ tar xf $kernel_source
+ mv \$(sed -re 's/(.+)\.tar\..+/\1/' <<<$kernel_source) linux
+endif
+
cd linux
# Adjust configuration.
#
-# Note that SECURITY_LOCKDOWN_LSM forces MODULE_SIG ('select' in Kconfig).
-#
-# Generally, if you disable an option but it still appears enabled after
-# the kernel build, search for 'select XXX' in Kconfig* and also disable
-# any found symbols.
-#
-scripts/config --disable KCSAN
-scripts/config --disable SECURITY_LOCKDOWN_LSM
-scripts/config --disable MODULE_SIG
-scripts/config --set-str BUILD_SALT ''
-scripts/config --set-str SYSTEM_TRUSTED_KEYS ''
+if [ -z "$kernel_source" ]; then
-scripts/config --enable INIT_STACK_NONE
-scripts/config --disable INIT_STACK_ALL_PATTERN
-scripts/config --disable INIT_STACK_ALL_ZERO
+ # Note that SECURITY_LOCKDOWN_LSM forces MODULE_SIG ('select' in Kconfig).
+ #
+ # Generally, if you disable an option but it still appears enabled after
+ # the kernel build, search for 'select XXX' in Kconfig* and also disable
+ # any found symbols.
+ #
+ scripts/config --disable KCSAN
+ scripts/config --disable SECURITY_LOCKDOWN_LSM
+ scripts/config --disable MODULE_SIG
+ scripts/config --set-str BUILD_SALT ''
+ scripts/config --set-str SYSTEM_TRUSTED_KEYS ''
-scripts/config --enable DEBUG_INFO_NONE
-scripts/config --disable DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT
+ scripts/config --enable INIT_STACK_NONE
+ scripts/config --disable INIT_STACK_ALL_PATTERN
+ scripts/config --disable INIT_STACK_ALL_ZERO
-# aarch64/5.19 additions:
-#
-scripts/config --disable KCOV
-scripts/config --disable SHADOW_CALL_STACK
-scripts/config --disable VIDEO_ADV7511
+ scripts/config --enable DEBUG_INFO_NONE
+ scripts/config --disable DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT
-# Disable sound subsystem/drivers.
-#
-sed -i -re '/^CONFIG_SND_.+/d' .config
-sed -i -re '/^CONFIG_SOUND_.+/d' .config
-scripts/config --disable CONFIG_SOUND
-scripts/config --disable CONFIG_SND
+ # aarch64/5.19 additions:
+ #
+ scripts/config --disable KCOV
+ scripts/config --disable SHADOW_CALL_STACK
+ scripts/config --disable VIDEO_ADV7511
-# Disable GPU subsystem/drivers.
-#
-# NOTE: this seems to have killed the high-resolution console.
-#
-sed -i -re '/^CONFIG_DRM_.+/d' .config
-scripts/config --disable CONFIG_DRM
+ # Disable sound subsystem/drivers.
+ #
+ sed -i -re '/^CONFIG_SND_.+/d' .config
+ sed -i -re '/^CONFIG_SOUND_.+/d' .config
+ scripts/config --disable CONFIG_SOUND
+ scripts/config --disable CONFIG_SND
-# Disable wireless network drivers.
-#
-scripts/config --disable CONFIG_WLAN
+ # Disable GPU subsystem/drivers.
+ #
+ # NOTE: this seems to have killed the high-resolution console.
+ #
+ sed -i -re '/^CONFIG_DRM_.+/d' .config
+ scripts/config --disable CONFIG_DRM
+
+ # Disable wireless network drivers.
+ #
+ scripts/config --disable CONFIG_WLAN
+fi
# Adjust kernel command line size limit.
#
@@ -690,6 +733,11 @@ if [ "$stage" -le "6" ]; then
sudo ln -sf "$root/usr/lib/systemd/system/buildos.service" \
"$root/etc/systemd/system/multi-user.target.wants/buildos.service"
+ # Patch in the arch variant.
+ #
+ sudo sed -i -e "s/^arch_variant=.*/arch_variant=$arch_variant/" \
+ "$root/usr/sbin/buildos"
+
info "generating buildos-init.cpio.xz..."
cd "$root"
@@ -703,12 +751,13 @@ etc/systemd/system/multi-user.target.wants/buildos.service
EOF
cd "$owd"
- cat buildos-rootfs.cpio.xz buildos-init.cpio.xz >"buildos-initrd-$arch"
+ cat buildos-rootfs.cpio.xz \
+ buildos-init.cpio.xz >"buildos-initrd-$arch_with_variant"
# Copy the kernel image next to the initramfs for convenience.
#
- cp "$root/vmlinuz" "buildos-image-$arch"
- echo "$buildid" >"buildos-buildid-$arch"
+ cp "$root/vmlinuz" "buildos-image-$arch_with_variant"
+ echo "$buildid" >"buildos-buildid-$arch_with_variant"
subvol_snapshot -r "$root" "$root-6"
fi